Telegraphic tape stop



March 16, 1937. E. RICE ET AL 2,074,189

TELEGRAPHIC TAPE s'ro P Filed April 22, 1935 2 Sheets-Sheet l 1720622 0215; dwarcZ Rice aZdo 6.]?

March 16, 1937. E. RICE ET AL 2,074,189

TELEGRAPHIC TAPE STOP Filed April 22, 1955 2 Sheets-Sheet 2 ick/arc? Rica Tl/ hZcZo GE Patented Mar. 1 1937 TELEGRAPHIC-TAPE sror Edward Rice, St. was, M0.,-aiia Waldo a. Rice,

* Chicago, Ill.

nesia A ril 22, 1935, Serial No. 17,626

' 16 Claims. (].178-42) This invention relates to telegraphic mecha-f nisms and more particularly to automatic tele-.

requiring any attendance or annoyance in consequence of repeated signal transmission and/or reception. r

In the telegraphic transmission of messages through code perforations in paper or other me- 5 diums of message transmitting, there is a re-' quirementfor a steady supply of paper therethrough in order to prevent repetition of signals that prove very annoying and create a waste in paper consumption without serving any constructive purpose. l'his is primarily accountable to a breakin the tape that renders the feeding mechanism inoperative for tape advances without stopping the operation of the transmitter and/or feeding mechanism. This will cause the a receiving end to repeatedly print the code selection where the transmitter pins last strike the stalledtape. Should-the code selection happen to repeat the line feed function. this will cause an unusual amount of annoyance at the distant 3 receiving station and continue 'to indefinitely feed out roll paper or tape.

Withthe teachings of the instant invention, automatic means are proposed. for ceasing the transmission of extraneous signals and stopping the operation of the feed wheel as the tape ends .thereon. This avoids the necessity of anattendant constantly supervising the operation of transmitters and also enables the tape to be automati cally stopped at any predetermined positionwhere it is desired to terminate the message or make an insertion depending upon the dictates of any particular message requirement or to accordingly terminate such without control or care being exercised by the attendant. While it is a common practice to exercise manual control over tape feeding through 'atransmitter, it is npt entirely reliable nor accurateand such, at best, entails a great deal of time andlabor which is not available in many operating offices because one at- 0 tendant may be called upon to supervise and operate a number of different machines for performing the functions thereof and thereby increase the work handled by one operator. One'object of the present invention is to provide an automatic tape stop in conjunction with along line V.V of Figure 1.

a telegraph transmitter so as to cease signal I transmission. and/or reception responsive to a breakin the supply of paper to the feeding mechanism. Y

Another object is to simplify the construction and improve theoperation of devices of the character mentioned.

Still another object is to provide automatic means for terminating the operation of a transmitter responsive to an interruption of tape or 10 roll paper thereto; J V

' A further object is to provide means responsive to the traverse ofvpaper through a transmitter to control the operation thereof and to terminatemessage transmission and/or reception responsive to an interruption in the paper supply:

' A still further object is to provide a telegraphic transmitter with controls that ceasesignal transmission at any predetermined position along a code perforated tape or other medium of mes- 20 sage transmission.

Still a further object is to provide means for opening the transmitter circuit responsive to a break or interruption in the supply of paper to the feeding mechanism of a telegraphic transmitter or at any predetermined point therealong in response to a special perforation provided therein.

Other objects and advantages will appear from the following descriptionof an illustrative em bodiment of the present invention.

In the drawings:

Figure 1 is a plan view of the device embodying. features of the present invention. p Figure '2 is a sectional view taken substantially along line 11-11 of Figure 1.

Figure 3 is a sectional view similar to Figure 2 with a tape or roll paper supply interrupted so as to permit the displacement. of the control member which opensthe transmitter circuit in consequence thereof. v

Figure 4 is a sectional view taken substantially alon line'IV-IV of Figure 1. v

Figure 5 is a sectional view taken substantially Figure 6 is a perspective view of the electrical contacts associated with the ,transmitter frame to enable the use of a control for ceasing trans mission of signals responsive to the break in the supply of tape or roll paper to the feeding mechanism Figure '7 is a sectional view taken substantially along line VII-VII of Figure 6.

- Figure 8 is a sectional view taken substantially along line VIII-VIII of Figure 1.

Figure 9 is a perspective view of the wedge member shown in operative position between the contacts in Figure 1.

Figure 10 is a diagrammatic wiring diagram of a Mux circuit embodying the transmitter solenoids, relays, distributor contacts, transmitter mechanism, and auto/stop lever comprising conventional parts of a telegraph system, except for the transmitter structure which embodies features of the present invention.

Figure 11 is a perspective view of segregated contacts shown in series for use in connection with a start-stop system shown in Figure 12.

Figure 12 is a diagrammatic wiring diagram of a start-stop circuit embodying a transmitter and distributor contacts to illustrate the purpose of the teachings of the present invention in connection therewith.

The structure selected for illustration comprises a suitable support II] that has an open area II for receiving a transmitter plate or frame I2 which extends thereover for detachable connection therewith through the medium of screw fasteners 53. A guide plate I6 is disposed above the transmitter plate or frame I2 and is substantially of rectangular configuration to provide a groove I5 therealong to define upstanding walls I6 and IT serving as a gate to guide the code perforated tape I8 thereover. As shown, the tape guide plate I I has upstanding guides I9 which are disposed rearwardly of the groove wall IE to define a predetermined path for the tape H3 in its passage along the groove I5 which has a. tape feeding mechanism cooperating therewith as will appear more fully hereinafter.

The tape feeding mechanism comprises, in this instance, a shaft 26 which is disposed transversely of the tape guiding groove I5 for journalled rotation in bearings 2! supported by the frame plate I2. As shown, a ratchet wheel 22 is fixed near one extremity of the shaft 26 for cooperation with a pawl 22' cooperating therewith to control the intermittent rotation thereof in conjunction with a feed wheel 23. The feed wheel 23 has a plurality of radically projecting studs 24 provided on the periphery thereof for meshing engagement with the linear line-of feed perforations 25 pro- I vided in the tape l8 for positive feeding along a predetermined linear path.

In order to maintain the tape I8 in registry with the studs 24 provided on the feed wheel 23, a flat substantially rectangular tape retaining lid 26 is pivoted to a lug bracket 21 attached to the transmitter frame I2, to effect the connection therebetween through the medium of a pintle 28. To this end, the tape retaining lid 25 is provided with furcations 29 that receive a correspondingly shaped projection comprising a part of the bracket 21 therebetween for enabling their pivotal connection by virtue of the pintle 2B therethrough. In order to maintain the lid 26 in operative connection with the transmitter frame plate I2, a lever latch mechanism 36 is pivoted between a furcated extension 3| provided on the free end of the lid 26 for receiving a pintle 32 therethrough.

As shown, the lever latch 30 comprises an arm 33 which has a tongue catch 34 to engage the underside of the transmitter frame plate I2 while another arm 35 extends upwardly beyond the lid 26 to enable the manipulation thereof to effect engagement and disengagement thereof relative to the frame plate l2. A spring 36 envelopes the pintle 32 and normally urges the lever latch 30 in a counterclockwise position (viewed from Figure 4) to normally effect engagement of the lid 26 with the frame plate l2 responsive to its counterclockwise displacement in the direction of the transmitter frame I2. I

Now, then, the lid 26 has a rectangular depending projection 37 which substantially conforms in shape and configuration with the tape receiving groove guide I5 provided in the tape guide plate Iii, the groove guide I5 being somewhat larger so as to telescopically receive the lid projection 3? with the tape I8 therebetween so as to hold the latter in a taut position when the retaining lid latch 36 engages the transmitter frame l2 (Figure 4) The complemental association of the lid 26 with its projection 37 in the guide I5 of the plate M with the tape I8 therebetween, is effected without appreciable friction thereon so that the tape I8 is free for linear traverse responsive to the intermittent rotation of the feed wheel 23 that has its studs 2 in meshing engagement with the tape feed perforations 25.

In order to accommodate the studs 24 that project through the linear line of feed holes or perforations 25 in the tape I8, the underside of the lid 26 is provided with a notch 38 that extends inwardly from the surface of the depending projection 3'! so that the studs 24 can project through the feed holes 25 and freely extend into the shoe 26 without obstruction thereto to insure proper meshing engagement with the feed perforations 25 of the tape I8. It is worthy of note that the lid mounting bracket 21 is secured or anchored to the transmitter frame plate I2 by means of threaded studs 39 which maintain the position of the lid 26 in alignment with the tape guide plate I I so that the groove I5 therein will always be in registry with the shoe projection 31 that is releasably held in position by the lever latch 36.

In order to guide the code selector pins that are reciprocably mounted in the path of the tape I8 so as to cooperate with the message code perforations 40, a bracket plate II is mounted to the shoe or tape retaining lid 26 for retention thereon by means of a bar 42 that has fasteners 33 extending therethrough to effect the detachable engagement thereof. As shown, the bracket plate II has a downwardly off-set extension M which extends in the path of the tape If] in horizontal alignment with the underside of the lid projection 31 so as to smoothly hold the tape in position in its traverse through the gate or tape guide plate I4.

A plurality of holes 45, in this instance five, extend transversely along the extension 44 for registry with corresponding holes 46 provided in a tape guide plate M for the purpose of receiving the code. pins 41 therethrough. The code pins II are operatively connected to levers 48 that terminate in arms 49 pivoted as at 50. The lever arms 49 have depending projections 5| that cooperate with levers 52 pivoted to confront the armature cores 53 of a pair of transmitter solenoid coils 5a mounted beneath the frame plate I i within the supporting casing l0 thereof. Similarly, the pawl 22' is rendered responsive to a lever 55 that is provided with an arm similar to those that serve as an integral part of the code pin levers 48, thereby intermittently rotating the shaft 26 that has the feed wheel 23 fixed thereto.

By this arrangement, the tape I8 is intermittently displaced along a linear path defined by the tape guide plate I4 and the code pins 4! respond to the perforations in the tape I8 during the moment that the tape I8 is at rest, thereby conveying corresponding impulses to the sending distributors that are connected to lead These signals are created through the action of the relay coil 58 which cooperates with an armawires 56 that terminate interminal contacts 51.

ture 59 and its contact 68 that are embodied in the transmitter circuit which extends from the distributor six pulse contact 6| through the relay coil 58 and thence through the auto-stop lever contact 62. When the relay armature 59 is in its inoperative position responsive to the urge of itsspring 63, engagement is effected with the terminal contact 68 to close the circuit which controls the transmitter solenoid 54. When the distributor contact 6| is open, the transmitter solenoid 54 is held closed and, conversely, when the distributor six-pulse contact 6I closes, the transmitter solenoids 54 are released. With the six-pulse distributor contact 6I being open, the solenoids 54 hold the five code pins 41 in an inoperative position, clear of the tape I8.

With the closing of the six-pulse distributor contacts 6|, the solenoids 54 are released and at the same time the code pins 41 tend to raise or ascend in the direction of the tape I8. If

' there is tape I8 in the transmitter tape guide plate I4 and all five code perforations 48 appear in the tape I8 in this position, the code pins 41 will passup through the perforations 46 to cause the pulses to be transmitted for recordation at the distant end through the terminal contacts 51 thatextend from the tongue leads 56-connected to the sending distributor at a remote stage.

Now, then, should the tape I8 show one or more of the code positions lacking perforations in the tape l8, that is the tape is blank at this position, the code pins 41 will be blocked against elevation orfascent by the tape I8 and no pulse or pulses will be transmitted. On every operation as a six-pulse contact 6I opens, the trans-'- mitter solenoids 54 close. As the latter closes, a lever operates the pawl 22' to displace the feed wheel 23 another step, thereby movingthe tape I8 forward for a corresponding distance. In the same movement, the code pins 41 descend to clear the tape I8 as the latter moves forward.

An auto-stop lever is provided in the circuit so that an arm 65 thereofcooperates with the contact 62 to provide means of stopping the operation of the transmitter I0 and also stopping 'the feeding of the tape I8. The auto-stop lever 64 may function by hand or by tape I8 passing thereunder in that a certain amount of slack is allowed to accumulate in the tape I6 as it is fed 1 out of the perforator' and into the transmitter.

As long as there remains sufiicient slack in the tape I8 between the perforator andthe transmitter, the tape will not interfere with the stop lever 64. Should the slack be taken up sufficiently by slowing down of the perforator, the

tape will come in contact with the lever 64 and cause the latter to rise, thereby opening itsv contact 62 which is connected to the six-pulse circuit of which-the distributor contact 6| is a part thereof, thereby causing the transmitter to ceasev operating and also stopping the inter! mittent movement of'the tape I8 forwardly.-

unsevered piece of tape I8 being fed or displaced through the transmitter tape guide plate I4. However, shoulda broken tape end reach the transmitter wheel 2311s the studs 24 thereof project upwardly through the tape guide plate I4, the transmitter will continue to pulsate. and

the tape I8, and although the tape I8 has stopped moving forwardly, the code pins 41 continue to ascend and descend on the last perforation or perforations 40 where the tape I8 has been stalled by virtue of the broken end thereof arriying at the position of the feed wheel 23 with reference to the tape guide plate I4. This will cause the receiving end or the receiving distributor to record and print repeatedly the code selection where the code pins 41 strike the stalled tape I8. Should the code selection at this stalled position repeat the line feed function, an unusual amount of annoyance at the distant end occurs and continued feeding of the rolled paper continues indefinitely unless an attendant observes the severed tape in the transmitter .I8 and is there to manually cease its operation.

In order to automatically stop the operation of plate I4 so that the-upper extremity thereof will be urged against the edge of the tape I8 as it passes through the guide plate I4. Confronting terminal plates 69 and 18 are fixed to the underside of the transmitter plate I2 for insulationtherefrom and from .each other. The terminal plates 68 and 16 are preferably composed of contact metal and provide resilient contacts" and 12 that confront each other with the upper contacts 1I nbrmally'yieldable toimpart an urge to the insulated head 61 of the pin 62 so that the upper extremity thereof is maintained in contact with the tape I8 or projected through the tape guide plate I4 for extension therebeyond in the absence oftape I8 underneath the tape retaining lid26. i i i So that the presence of tape I8 underneath the tape retaining lid 26 will maintain the terminal contacts H and 12in engagement, the latter is provided with an upstanding extension I3 which extends in the path of the upper terminal contacts 1I so that electrical eontact is established therebetween against the normal resiliency thereof which tends to effect their operation. 'The contact terminals II and12 are in series with the auto-stop lever contact 62 through the lead wires 1-4 and 15 that terminate in a double terminal 16 comprising electrically conductive plates 11 and;

18 which are insulated from each other by means of an intermediate layer of insulation material 18'. The double contact 16 serves as a wedge between the terminals 88 and 8| which are normally in sliding contact to provide a series connecton between the relay 58 and auto stop lever 64. 1

This double'contact 16 which is .wedged in between the permanent contacts 88 and 8| of the six-pulse circuit, places the terminals." and 12 in series therewith for control by the pin 66 that is responsive to thepresence or absence of tape I8 in the normal operation of the transmitter Ill.

Should a break occur in the tape I8, the pins 66 will be placed upwardly responsive to the urge from the resilient terminal contact H and thus effect disengagement of the latter from the 5 terminal 12 to break the circuit and cease the operation of the feeding mechanism and code pins 41. In consequence thereof, the transmitter Will cease to pulsate and the feeding mechanism will be rendered inoperative so that the trans mission of false signals is automatically prevented upon such an occurrence.

In order to render it possible, however, to send out start and stop signals to a distant station by manual use of the auto-stop lever 64, means 15 are provided to close the lever six-pulse circuit by throwing a shunt around the separated terminal contacts '|I'I2 responsive to the ascent of the pins 66 because of the absence of tape I8 thereabove. This is accomplished by an additional pin 82 which is mounted in a bushing 83 fixed to the transmitter plate I2 so as to guide the pin 82 having an insulated head 84 in engagement with a terminal contact 85 spaced from the terminal contact 12, but comprising a part of its plate ID. The terminal contact 85 has, in this instance, another terminal contact 86 having a depending extension 81, which is spaced from the terminal contact "II, but comprises a part of its plate 69. The resilience of the terminal contact 85 will urge the pin 82 upwardly against a threaded stud 88 in fixed engagement with the tape retaining lid 26 near the free extremity thereof.

As-shown, the threaded stud 88 has an enlarged knurled head 89 that enables the manipulation thereof and adjustment in thread-ed connection with the lid 26 so as to serve as a stop for the pin 82 in axial alignment therewith. It will be observed that the terminals 85-86. are normally disengaged when the tape retaining lid 26 is in operative engagement with the transmitter plate l2 through the medium of itslatch 30. This occurs because the pin 82 is displaced downwardly by the lid 26 so as to displace the resilient contact 85 downwardly from engagement with the extension 81 on the terminal 86, thereby closing the circuit only through the other terminals 'Il22 when the tape I8 passes underneath the lid Now, then, in cases where the tape I8 has become torn in two parts and as a result the pin 66 is elevated because the contacts 'III2 become spaced and disengaged from contact, a shunt is established around the open contacts II-I2 by means of the auxiliary pin 82 inthat the lid 26 I is raised and contact its efiected between the terminals 85-86 to enable this signal to be transmitted with the distant station. Then, too, should it become necessary to transmit the very last punch operation because of the severence of the tape I8 in two parts and where hand feeding becomes necessary together with the use of the auto stop signal lever 64, the shunt around the open terminals II-I2 is established without raising the lid 26 by turning the screw head 89 to allow the pin 82 to move upwardly for closing the contacts 85-86 even though the tape retaining lid 26 remains latched.

The above described circuit and contact struc ture is used in a Mux system that embodies an auto-stop hand lever utilized to send start and stop signals in lieu of written andpunched requests or to indicate the connection of a reperforator in the receiving circuit for recording the 75 message about to be transmitted. For apparatus and circuits not using the auto stop lever 64 and where a keyboard is available for sending purposes, a modified design of the contact assembly is provided (Figures 11 and 12). Instead of providing parallel contact assembly as illustrated in Figure 6 for use in connection with the auto control lever 64, a series contact assembly is provided in its stead (Figure 11) The modified embodiment of the contact assembly comprises an upper plate 69' which is split for connection of lead wires 14' and to eachsection thereof so that the terminal contacts II'-I2' are in series with terminal contacts 86 rather than connected in parallel as illustrated in Figure 6. Thus,

the tape responsive pin 66' engages, in this instance, lower terminal "II to keep the contact open as the pin 66 is pressed down by the tape l8. When the end of the tape I8 passes beyond the pin 66', the latter moves upwardly and allows the resilient terminal ll to engage the terminal 12, thereby closing a shunt circuit across the sending contacts 9| of the distributor 92 connected with the main line 93-94. With the main line 9394 closed in this manner, not only false signals are prevented from being transmitted at the tape-end, but this shunting enables other stations on the line the immediate use of the wire rather than have same tied up unnecessarily by the transmitter striking on the tape-end for destructive rather than constructive purposes. The second pin 82' being in series with the first pin 66, aifords breaking of the shunt around the sending distributor contacts 9| when the tape retaining lid 26 is lifted to open con- 'tacts 85-86 responsive to the unlatched position that removes the pin 82' from the terminal 85'. This will now enable the operator to use the keyboard by hand for sending purposes instead of the tape transmitter, if so desired, or found necessary.

Another important advantageous use of the tape-end responsive pin 66 when used in connection with the auto-stop lever contact 62 principally in multiplex circuits (Figure 10) is to provide a means of stopping the tape I8 at any precise predetermined point upon being fed through the transmitter I0 (Figure 1). For instance, should it be desired to end the transmission of a message at any precise word or phrase perforated in code on the tape I8, a small perforation 93 is made with a hand punch on the margin of the tape I8 (see Figure 1) so that the pin 66 will riseat the exact position. In this manner the tape I8 is stopped automatically at any predetermined point without further concern rather than to leave the attendant laboriously watch the progress of the tape I8 with the auto-stop lever in hand and possibly inadvertently permit the tape I8 to slip by and beyond the objective point that was selected.

It is frequently necessary in some telegraph ofiices to stop the tape [8 while awaiting a signal from the distant oflice to start up after having prepared the printer with a book of carbon copies or to indicate that a reperforator has been attached or otherwise made ready for reception. The marginal perforation 93 is placed, in this instance, five punch holes forward of desired stop point, since this is the distance between the code pins 41 and the feed wheel 23 whose stud 24 is in its last efiective feeding position. Then, too, this automatic tape-stop finds an additional advantage where there is no object or purpose in keeping the tape I8 as an unsevered piece, in aifording the severance of the tape I8 by the operator 20 combination with means for feeding message paat the end of any message for transmission without any further attention. At the end of the message whenthe severed'end of the tape l8 has reached the code pins 41, the transmitter ID will cease operating and avoid 'mutilating the print I copy at the distant end. The present practice is to, feed out one hundred blanks, more or less, in order to allow they last of the perforations to reach the "transmitter without severing the tape. It 10 should be appreciated that the pins 66 and 82oz either one thereof, may be substituted by a suitable movably mounted member that serves the same or equivalent'purpose.

Various changes may be made in the embodi- 15 ment of the invention herein specifically described without departing from or sacrificingany of the advantages of the invention as defined in the appended claims. v

We claim: I 1. In a device of thecharacter described, the

per along a predetermined path, of a plurality of I code pins in said path for cooperation with said paper, means including an electrical circuit for 2 operating said code pins and paper'feeding means for effecting signal transmissionin timed relation with the feeding of said paper past said code pins, and means in the path of said paper for opening said electrical circuit responsive to a break in'the 30 supply of paper to said feeding meansto automatically stop signal transmission.

2. In a device of the character described, the combination with a transmitter, of means for feeding message paper along a predetermined 35 path through said transmitter, a plurality of 7 code pins insaid transmitter for cooperation with said paper, means including an electrical circuit, -for operating said code pins and paperfeeding means for efiecting signal transmission in timed 40 relation with the feeding of said paper past said .code pins, and means associated with said transmitter in the path of said paper for opening said electrical circuit responsive to a break in the supply of paper to said feeding means to auto- 45 matically stop signal transmission.

3. In a device of the character described, the combination with a transmitter, of means for feeding message paper along a predetermined path through said transmitter, a plurality of code 50 pins in said transmitter for-cooperation with said paper; means including an electricalcircuit for operating said code pins and'paper feeding means forefiecting signal transmission in timed relation with the Tfeeding'of said paper, past said code pins, and a movably mounted pin associated with said transmitter in the path of said paper for controlling said*- electrical circuit responsive to a break in the supply of paper to said feeding 60 means to automatically stop signal transmission. 4. In a device of'thecharacter described, the combination with a transmitter, of means for feeding message paper along a predetermined path through said transmitter, a plurality of code 65 pins in said transmitter for cooperation with said paper, means includingan electrical circuit for operating said code pins and paper feeding means for effecting signal transmissionin timed relation with the feeding of said paper past said code pins, 70 a movably mounted pin associated with said transmitter in the path of said paper, and a pair of confronting resilient contacts in said circuit in operative connection with said movably mounted pin for controlling said electrical circuit 75 responsive to a break in the supply of paper-to said feeding means to, automatically stop signal transmission.

5. In a device of. the character described, the combination with means for feeding message paper along apredetermined path, of a plurality of code pins in said pathfor cooperation with said paper, means including'an electrical circuitfor operating said code pins and paper feeding means for effecting signal transmission in timed relation with the feeding of said paper past said code pins, a stop and start signal means in said circuit, means in the path of said paper for opening said electrical circuit responsive to a break in the supply of paper to said feeding means 'to ,automatically stop signal transmission, and

meansfor closing said circuit around said circuit opening meansto enable the effective operation of said stop and start signal means, a

6. In a device of the character described, the combination with a transmitter, of.- means for feeding message paper along a predetermined path through said transmitter, a plurality of code pins in said transmitter for cooperation with said paper, means including an electrical circuit for operating said code pins and paper feeding means for effecting signal transmission in timed relation with the feeding of said paperpast said code pins, a stop and start signal means in said circuit, means associated with said transmitter in the path of said paper for opening said electrical circuit responsive to a breakin the supply of paper to said feeding means to automatically stop signal transmission, and means associated with said transmitter for closing said circuit around'said circuit openingmeans to enable the effective operation ofsaid stop and start signal means.

7. In a-device of the character described, the combination with a transmitter, of means for feeding message paper along a predetermined pins in said transmitter for cooperatidn with said path'through said transmitter, aplurality of code i.

paper, means including an electrical circuit for for effecting signal transmission in timed relation with the feeding of said paper past said code pins,

-,a stop and start signal means in said circuit, a

pin reciprocally mounted in said transmitter to project in the path of message paper travel, a pair of confronting resilient contacts in said circuit in operative connection with said movably mounted pin to open said electrical circuit responsive to a break inthe supply of paper to said feeding means to automatically stop signal trans- "mission, and means associated with said transmitter for closing said circuit around said resilient contacts to enable the effective operation oi. saidstop and start signal means.

8. In a device of the character described, the

combination with a transmitter frame having means for guiding message tape along a prede- 'termined path, of a shoe movably associated with said frame to'enclose the path of the tape through 1 said transmitter, means on saidnfrajme for feeding the tape through said transmitter frame, an elec-- trical circuiteonnected to said lastnamed means .for controlling the movement of the inessaigetape,

operating said code pins and paper feeding means sponse to a break in the supply of-paper to said feeding means.

9. In a device of the character described, the combination with a transmitter frame having means for guiding message tape along a predetermined path, of a shoe movably associated with said frame to enclose the path of the tape through said transmitter, means on said frame for feeding the tape through said transmitter frame, a plurality of code pins reciprocably mounted on said frame for cooperation with said tape, means including an electrical circuit for operating said code pins and feeding means to effect signal transmission, a member reciprocably mounted in said frame to project into the path of tape travel therethrough in confronting relation with said shoe, and a pair of electrical contacts in said circuit, said electrical contacts being mounted on said frame for cooperation with said member to terminate transmission of code signals, and restore line circuit to inoperative condition responsive to a break in the supply of paper to said feeding means.

10. In a device of the character described, the combination with a transmitter frame having means for guiding message tape along a predetermined path, of a shoe movably associated with said frame to enclose the path of the tape through said transmitter, means on said frame for feeding the tape through said transmitter frame, an electrical circuit connected to said last named means for controlling the movement of the message tape, a plurality of code pins reciprocably mounted on said frame for cooperation with said tape, a member reciprocably mounted in said frame to project into the path of tape travel therethrough in confronting relation with said shoe, a pair of electrical contacts in said electrical circuit and mounted on said frame for cooperation with said member to stop the operation of said code pins and tape feeding means responsive to a break in the supply of paper to said feeding means, stop and start signal means in circuit with said contacts, and means for closing said circuit subsequent to a break in the supply of paper to said feeding means to enable the effective operation of said stop and start signal means in circuit therewith.

11. In a device of the character described, the combination with a transmitter frame having means for guiding message tape along a predetermined path, of a shoe movably associatedwith said frame to enclose the path of the tape through said transmitter, means onsaid frame for feeding the tape through said transmitter frame, an electrical circuit connected to said last named means for controlling the movement of the message tape, a plurality of code pins reciprocably mounted on said frame for cooperation with said tape, a member reciprocably mounted in said frame to project into the path of tape travel therethrough in confronting relation with said shoe, a pair of electrical contacts in said electrical circuit and mounted on said frame for cooperation with said member to stop theoperation of said code pins and tape feeding means responsive to a break in the supply of paper of said feeding means, stop and start signal means in circuit with said contacts, and screw means associated with said shoe for cooperation with said last named means, for closing said circuit subsequent to a break in the supply of paper to said feeding means to enable the effective operation of said stop and start signal means in circuit therewith.

12. In a device of the character described, the

combination with a transmitter frame having means for guiding message tape along a predetermined path, of a shoe movably associated with said frame to enclose the path of the tape through said transmitter, means on said frame for feeding the tape through said transmitter frame, an electrical circuit connected to said last named means for controlling the movement of the message tape, a plurality of code pins reciprocably mounted on said frame for cooperation with said tape, a member reciprocably mounted in said frame to project into the path of tape travel therethrough in confronting relation with said shoe, a pair of electrical contacts in said electrical circuit and mounted on said frame for cooperation With said member to stop the operation of said code pins sage tape along a predetermined path in said frame, tape feeding means in said path for cooperation with the tape, means including an electrical circuit for operating said feeding means, confronting contacts in said circuit, said contacts being associated with said frame, a member movably mounted in said frame for engagement with one of said contacts to normally project the free extremity of said member into the path of said tape travel, and a lid movably associated with said frame to displace saidmember through the medium of the tape against the normal urge of said contacts to render said feeding means operative responsive to the uninterrupted supply of tape to said feeding means.

14. In a telegraphic tape transmitter, the combination with a frame, of means for guiding message tape along a predetermined path in said frame, tape feeding means in said path for cooperation with the tape, an electrical circuit connected to said last named means for controlling the movement of the message tape, confronting contacts in said electrical circuit and associated with said frame, a member movably mounted in said frame for engagement with one of said contacts, the free extremity of said member normally projecting into the path of said tape travel, a lid movably associated with said frame to displace said member through the medium of the tape against the normal urge of said contacts to render said feeding means operative during an uninterrupted supply of tape to said feeding means, and another member movably mounted relative to said contacts for momentarily closing the circuit opened by said contacts for enabling manual signal transmission.

15. In a telegraphic tape transmitter, the combination with a frame, of means for guiding message tape along a predetermined path in said frame, tape feeding means in said path for cooperation with the tape, an electrical circuit connected to said last named means for controlling the movement of the message tape, a plurality of code pins cooperating with the tape for message tranmission, confronting contacts in said electrical circuit and associated with said frame, a member movably mounted in said frame for engagement with one of said contacts, the free extremity of said member normally projecting the uninterrupted supply of tape to said feeding means, said member being operative responsive to an interruption in the tape to render said code pins and feeding means inoperative to eifect signal transmission, and another member I movably mounted relative to said contacts for momentarily shunting the circuit controlled by said contacts for enabling manual signal transmission.

16. In a telegraphic tape transmitter, the combination with a frame, of means forguiding message tape along a predetermined path in said frame, tape feeding means in said path for cooperation with the tape, an electrical circuit connected to said last named means for controlling the movement of the message tape, a plurality of code pins cooperating with the tape for message transmission, confronting contacts in said electrical circuit and associated with said frame, a

member movably mountedin said fram for engagement with one of said contacts, the free extremity of said member normally projecting into the path of said tape travel, a lid movably associated with said frame to displace said member through the medium of the tape against the normal urge of said contacts to render said code pins and feeding means operative responsive to the uninterrupted supply of tape to said feeding means, said member being operative responsive to an interruption in the tape to render said code pins and feeding means inoperative to effect signal transmission, another member movably mounted relative to said contacts for momentarily shunting the circuit controlled by said contacts for enabling manual signal transmission, and another member movablymqunted relative to said contacts for selectively closing said circuit to enable manual signaling.

' EDWARD RICE. WALDO G. RICE. 

